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Add 3/80 and 7/45

3/80 + 7/45 is 139/720.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 45 is 720
  2. For the 1st fraction, since 80 × 9 = 720,
    3/80 = 3 × 9/80 × 9 = 27/720
  3. Likewise, for the 2nd fraction, since 45 × 16 = 720,
    7/45 = 7 × 16/45 × 16 = 112/720
  4. Add the two fractions:
    27/720 + 112/720 = 27 + 112/720 = 139/720

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